Restraints and Safety Systems: Description and Operation

The SRS is a driver and front passenger protection device which has a supplemental role to the seat belts.
When the Ignition SW is turned to ACC or ON, current from the CIG fuse flows to TERMINAL A-14 of the center airbag sensor assembly only when the Ignition SW is ON does the current from the AM2 fuse to TERMINAL A-13.
If an accident occurs while driving, deceleration caused by a frontal impact is detected by each sensor and switch, and when the frontal impact exceeds a set level (when the safing sensor built into the center airbag sensor assembly is ON and the center airbag sensor is ON, front airbag sensors are OFF), current from the CIG or AM2 fuse flows to TERMINALS A-3, A-2 and B-1 of the center airbag sensor assembly -> TERMINAL 1 of the airbag squib -> TERMINAL 2 -> TERMINALS A-4, A-1 of the center airbag sensor assembly --> TERMINAL A-5, TERMINAL A-6 or BODY GROUND --> GROUND.

When the safing sensor built into the center airbag sensor assembly is ON and the front airbag sensor LH or RH is ON, center airbag sensor is OFF and current from the CIG or AM2 fuse flows to TERMINALS A-3, A-2 of the center airbag sensor assembly --> TERMINAL 1 of the airbag squib and seat belt pretensioner -> TERMINAL 2 --> TERMINALS A-4, A-1 of the center airbag sensor assembly --> TERMINAL B-1 or C-2 --> TERMINAL 1 of he front airbag sensor --> TERMINAL 2 --> TERMINAL B-2 or C-1 of the center airbag sensor assembly --> TERMINAL A-5, TERMINAL A-6 or body GROUND --> GROUND, when the safing sensor built into the center airbag sensor assembly is ON, and the front airbag sensor LH or RH is ON and center airbag sensor is ON one of the above-mentioned circuits is activated so the current flows to the airbag squibs and causes them to operate.
The airbag stored inside the steering wheel pad is instantaneously expanded to soften the shock to the driver.
The airbag stored inside the passengers instrument panel is instantaneously expanded to soften the shock to the passenger.